#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <vector>

using namespace std;

struct ListNode {
    int val;
    ListNode* next;
    ListNode() : val(0), next(nullptr) {}
    ListNode(int x) : val(x), next(nullptr) {}
    ListNode(int x, ListNode* next) : val(x), next(next) {}
};

ListNode* addTwoNumbers(ListNode* l1, ListNode* l2) {
    ListNode* newhead = new ListNode(0);
    ListNode* cur1 = l1, * cur2 = l2;
    ListNode* prev = newhead;
    int t = 0;

    while (cur1 || cur2 || t)
    {
        if (cur1)
        {
            t += cur1->val;
            cur1 = cur1->next;
        }
        if (cur2)
        {
            t += cur2->val;
            cur2 = cur2->next;
        }

        prev->next = new ListNode(t % 10);
        prev = prev->next;
        t /= 10;
    }

    prev = newhead->next;
    delete newhead;

    return prev;
}

int main()
{

	return 0;
}